Joules: They use that in Happy Feet, actually.
You can tell Lovelace wants to tell Mumble to 'go fuck yourself', but he strains the F and turns it into 'go forth and multiply'.
I thought it was quite clever.

Gee...seems to me that it would be more of a sin to place yourself in potential physical danger for your own amusement than it would be to engage in the act of biological reproduction, (even for amusement). Fortunately, I doubt Shyguy will be doing to much of the latter as it is a "sin". So I guess we have something to thank God for after all.

Proof that religion is just used for control. Sex is evil and sinful. Except if it's done in a manner and within a status we control. So once we marry you, all that nasty sex is suddenly good! Now go plop down a brood so we can repeat the process.